Data Sheet

© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN7621 • Rev. 1.0.3 13
FAN7621 — PFM Controller for Half-Bridge Resonant Converters
Typical Application Circuit (Half-Bridge LLC Resonant Converter)
Application Device Input Voltage Range Rated Output Power
Output Voltage
(Rated Current)
LCD TV FAN7621
390V
DC
(340~400V
DC
)
200W 24V-8.3A
Features
 High efficiency ( >94% at 400V
DC
input)
 Reduced EMI noise through zero-voltage-switching (ZVS)
 Enhanced system reliability with various protection functions
FAN7621
Figure 29. Typical Application Circuit